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Service Notice

The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

The notice period started at 12:00 pm on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Friday, 1 January 2027 +08:00.

Thomasia foliosa J.Gay

Reference
Mém.Mus.Hist.Nat. 7:454 (1821)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Multi-stemmed shrub, 0.2-1(-2) m high. Fl. white/pink-purple, May to Nov. Usually lateritic gravelly or granitic soils.

Grazyna Paczkowska, Descriptive Catalogue, 2 October 1996
Image

Scientific Description

Shrub, with hairy stems. Leaves 10-45 mm long, 7-35 mm wide, not lobed or tripartitely lobed, simply (once-)lobed; margins crenate; hairy, with stellate hairswith scales absent, Sessile glands absent; stipules present but early deciduous (only visible on youngest leaves), 3-10 mm long. Perianth of two whorls but the corolla reduced to small scales or tiny lobes at the base of the ovary or of one whorl only (the visible whorl is a calyx, sometimes petaloid) (by misinterpretation). Pedicel present, 2.5-3.7 mm long; indumentum present, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 2.8-3 mm long, the lobes free, indumentum present, stellate hairs presentwith scales absent, Sessile glands absent. Calyx pink or white, 3.6-6 mm long, the lobes fused less than half their length, Sessile glands absent, simple hairs (without tubercle bases) absent, stellate hairs present, tubercle-based simple hairs absent, gland-tipped hairs absent, scales scales present, Terminal appendages absent, number of ribs present, one. Corolla glabrous. Indumentum (outside) Sessile glands absent. Stamens five, free and inserted at the base of the ovary; filaments present, 0.8-1.3 mm long; anthers 1.2-2.5 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs or scales present, simple hairs absent, stellate hairs present, gland-tipped hairs absent; style 1, with a lobed or capitate stigma, 4.2-6 mm long, with one style branches or lobes, mostly glabrous, wing absent. Flowering time May, June, July, August, September, October or November. Distribution Botanical Province South-West, IBRA Bioregion Geraldton Sandplains, Swan Coastal Plain, Avon Wheatbelt, Jarrah Forest, Mallee, Warren and Esperance.

C. Hollister and K.R. Thiele, 11 August 2023

Distribution

IBRA Regions
Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.
IBRA Subregions
Dandaragan Plateau, Eastern Mallee, Fitzgerald, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren, Western Mallee.
IMCRA Regions
Central West Coast, Leeuwin-Naturaliste.
Local Government Areas (LGAs)
Albany, Armadale, Augusta Margaret River, Beverley, Boddington, Boyup Brook, Bridgetown-Greenbushes, Brookton, Broomehill-Tambellup, Bruce Rock, Busselton, Cambridge, Chittering, Collie, Cranbrook, Cuballing, Dandaragan, Denmark, Dowerin, Dumbleyung, Esperance, Gingin, Gnowangerup, Gosnells, Jerramungup, Kalamunda, Kellerberrin, Kojonup, Lake Grace, Manjimup, Mingenew, Mundaring, Murray, Narrogin, Northam, Perth, Pingelly, Plantagenet, Ravensthorpe, Serpentine-Jarrahdale, Swan, Three Springs, Toodyay, Victoria Plains, Wandering, Waroona, West Arthur, Wickepin, Williams, Wongan-Ballidu, Yilgarn, York.